AR-PE1 (serv.man11). ARPE1 Colour Manual - Sharp Copying Equipment User Guide / Operation Manual. Page 122

If you decide to turn on PostScript Color Management when printing a CMYK image, 
Photoshop sends CMYK data to the Fiery X4 along with PostScript color information 
defining the source color space of the image, or the color space of the profile chosen in 
the Space menu. Because this profile is included, a Fiery X4 CRD is used. (Make sure 
to choose the appropriate CRD setting.)

The destination color space for the CRDs is determined by the RGB Separation print 
option. By setting RGB Separation to Simulation, CMYK image is printed according 
to all specified CMYK Simulation Profile and CMYK Simulation Method settings. By 
setting RGB Separation to Output, CMYK image is converted to the selected Output 
profile’s CMYK color space.

Choose other print options (see Chapter 1). The Spot Color Matching setting has no 
affect because Photoshop converts PANTONE colors to CMYK values when you work 
in CMYK mode.

• If the image was separated for an offset press standard, apply the corresponding 

CMYK Simulation setting. For example, if the image is separated for SWOP, choose 
SWOP as the CMYK Simulation setting. 

• If Photoshop is configured for a custom separation using ICC profiles, select the 

corresponding profile from the CMYK Simulation print option for the Fiery X4. 

The above custom simulation setting requires that the same profile used for 

separation in Photoshop also resides on the Fiery X4. For more information on 
downloading CMYK Simulation profiles to the Fiery X4 with ColorWise Pro Tools, 
see page 4-5.